Note 7 - Goodwill (Tables)

6 Months Ended

Nov. 30, 2015

Notes Tables

Schedule of Goodwill [Table Text Block]

	November 30, 2015			May 31, 2015
Balance at beginning of period	$	842,258			851,563
Additions:
Acquisition of businesses		346			432
Foreign currency translation adjustment		(2,097	)		(9,737	)
Balance at end of period	$	840,507			842,258